The sets are released by Bridge Entertainment Group, a company that specializes in nostalgic youth series on DVD. Each set contains three discs, and they both have the documentary "Henson's Place: The Man Behind The Muppets" as an added bonus on the third disc.
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The Muppet Show set has twelve episodes (four per disc). They're random episodes, categorized by the type of guest star, which is a bit of a letdown... though it looks like they might release more episodes since they haven't covered "musicians" yet. Many of these were released on DVD and VHS before by HMV, with the exception of the Candice Bergen episode.
Season 1 episodes do not have their original openings. Another interesting note is that the package says "Twiggy and Mary Roos", though the clip with Mary Roos (which was made for the German version of the episode) is not featured.
The episodes are in English with a Dutch subtitle option.
The menus are very well made: it shows old fashioned theatre posters of the Muppets, and Kermit sitting at his desk backstage, looking at the menu with a weird look on his face (taken from the Sylvester Stallone episode).
The episodes are:
DISC 1: COMEDIANS
Bob Hope - Steve Martin - John Cleese - Peter Sellers
DISC 2: ACTORS
Sylvester Stallone - Dudley Moore - Star Wars - Roger Moore
DISC 3: ACTRESSES
Candice Bergen - Twiggy - Julie Andrews - Brooke Shields
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The Fraggle Rock set is a lot more interesting since it has the first 17 episodes in chronological order, complete with opening/closing credits. These were the episodes that were released on rental video in the Netherlands, before Fraggle Rock was shown on television; so sadly I have no idea if they have access to other episodes. It's from the American series with Geri Parkes as Doc.
The main menu takes us down past the pipes into Gobo's room, where he's reading: Mokey peeks through the window, Red comes flying in and Wembley runs over her (taken from episode 1).
The episodes can be watched in Dutch or English and there's a Dutch subtitle option.
DISC 1:
Beginnings - Wembley and the Gorgs - Let The Water Run - You Can't Do That Without A Hat - The Thirty Minute Working Week - The Preachification Of Convincing John - I Want To Be You
DISC 2:
The Terrible Tunnel - The Lost Treasure Of The Fraggles - Don't Cry Over Spilt Milk - Catch The Tail By The Tiger - The Finger Of Light - We Love You Wembley - The Challenge
DISC 3:
I Don't Care - Capture The Moon - Marooned